Vise.



F. .0. SANFORD. VISE.

APPLICATION FILED MAR. 15. I918.

1 ,279,01 1 Patented Sept. 17, 1918.

2 SHEETS-SHEET l.

E STATES Pn'rniv'r orricE.

FRANK o. SANFORD, or BRIDGEPOR'I, conivncrrrcur.

V vrsn.

Application filed March 15, 1918:. Serial No. 222,661.

Toull whom it may concern:

Be it known that I, FRANK C. SANFORD, a citizen of the United States, residing at the city of Bridgeport, county of Fairfield, State of Connecticut, have invented certain new and useful Improvements in Vises; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in'the art to which 7 and eoni'binations of parts'hereiiiafter described and claimed, reference being bad to the accompanving drawings wherein- Figure 1 is a top plan viewrof a vise constructed in accordance with the present invention; Fig. 2 is a side elevation thereof; 7 Fig. 3 is a longitudinal section on line 3-3 of Fig.1;

Fig. 4 is a transverse'section on line 4et ofFigl; m

Fig. 5 is a perspective view of afslide bearing; and V j V r r r V Fig 6 is a bottom plan view of the eccentric end of the cam lever. f 7

Referring more in detail to the draw ings, the numeral 1 designates the base formed with a longitudinal chamber or groove 2 and side flanges 3. A fixed jaw 4 is arranged at one end of the base for cooperation with the movable jaw 5 which is slidably connected 7 t0 the base by detachable plates 6 that engage beneath the flanges 3 and constitute therewith a dovetail connection, as depicted in Fig. 4. In a rear extension ofthe adjustable jaw is formed a transverse guideway 7 in the bottom of which is a slot 8 registering with and extending lengthwise of the chamber 2 but crosswise of the guide 7. V Disposed longitudinally within the chain bcr 2 and journaled at each end thereof in the base 1 is a rotatable shaft 9 having screw threads 10 on that portion within the cham- Specificationiof Letters )Patent.

Patented her for engagement by and for advancing and retracting a sleeve nut 11. The outer end of the screw shaft 9 is extended through sea. is, 19181 the end of the base and is equipped with a V 7 hand wheel 12 by which the shaft may readily be turned and'the nut advanced in either direction. The extension of screw shaft 9: is

journa-lediii a bushing 22 whichiis threaded inthe outer endof, the base 1 andi'held' against accidental or unauthorized unscrewng by a small screw that extends within a hole 24- in said bushing. This bushing will thus withstand the thrust of shaft 9 in an efiicient manner, and when the screw '23 is removed the bushing may be unscrewed and the shaft withdrawn. forined on the nut 11 and extends upwardly through the slot 8 to constitute a support for the eccentric or cam' li through which A. stub shaft 13 is is it passes oil centeii Slidably mounted in theguideway 7 is a slide bearing 15 which has a round opening ldformed in it to receive'the hub-like eccentric 1d,; the latter" having an overhanging flange 1'4 to engage" over he slide bearing andvkeep it seated in the guideway. I gagcd over the upper threaded end of the stub shaft serves to maintain the parts in their'operative relation. 7 V 5 In operation, the base may have a swivel mounting or berfirmly bolted down one work bench Ol'lfllJlG 11 passing the fasteners through the eais V 20. The/work being then placed against the fixed jaw, hand wheel 12 isturned to rotate thescrew shaft and advance the nut 11 to obtain the de-V sired adjustment of the movable jaw. Now, by swinging the cam lever 21, formed on the eccentric 14, backwardly, the latter will give the movable jaw the final tightening movement to securely and firmly grip the work. To release the work it is only essential to swing the lever in either direction toward the jaws, such swinging action turning the eccentric in the slide bearing to both slide the latter in its guideway and also shift itrto effectadjustment of the movable jaw from whatever position it has been given by the screw adjustment. once being setby the screw shaft th'e cain adjustment will be the only one required to be operated while working on a like stock 'of work. Thus, a quiclradjustment is provided for clamping and unclainping the A nut 13 and washer 19 en-' After 7 work. This is especially desi able in a vise where the primary adjustment is of the screw type.

hat is claimed is 1. A vise comprising a base having a fixed aw at one end and formed in its upper face with an elongatedchamber, a screw shaft journaled in the base at each end of the chamber and disposed lengthwise within the latter, an adjustable jaw slidably connected to the base for movement toward and away from the fixed jaw and provided with a transverse guideway having a crosswise slot registering with the chamber, a nut mounted within the chamber on the threads of the shaft for being moved by rotating the latter, a stub shaft carried by the nut and extending through the slot of the movable jaw, a cam lever journaled on the stub shaft and provided with an eccentric, a slide bearing slidable in the, transverse guideway and formed with an opening to receive the eccentric, and means for securing the slide bearing in its guideway and the eccentric to the stub shaft.

'2. A vise comprising a base having a fixed jaw at one end and formed in its upper face with an elongated chamber, a screw shaft journaled in the base at each end of the chamber and disposed lengthwise ithin the latter, an adjustable aw slidably connected to the base for movement toward and-away from the fixed jaw and provided with a transverse guideway having a crosswise slot registering with the chamben'a nut mounted within the chamber on the threads of the shaft for being moved by rotating the latter, a stub shaft carried by the nut and extendingthrough the slot of the movable jaw, a cam lever journaled on the stub shaft and provided with an eccentric, and means slidable in the transverse guideway and formed with an opening to receive the eccentric.

3. In a vise,'a base having an elongated chamber, a threaded shaft journaled in the base lengthwise of the chamber, a stub shaft threaded at its outer end and having its inner end integrally connected to a nut, said nut being mounted on the shaft for advancement within the chamber'when the shaft is" rotated, an adjustable jaw slidable on the base over its chamber and formed with a slot extending lengthwise of the latter to receive the upwardly projecting stub shaft, a cam lever ournaled on the stub shaft and provided with an eccentric for shifting the jaw, and a nut secured on the upper threaded end of the stub to hold the cam lever thereon.

a. In a vise, a base having an elongated chamber, a threaded shaft journaled in the base lengthwise of the chamber, a nut mounted on the shaft for advancement within the chamber when the shaft is rotated, an adjustable jaw slidable on tiie base and formed with a transverse guidewayand a slot extending crosswise of the guideway and lengthwise of the chamber, a stub shaft carried by the nut and extending upwardly through the crosswise slot and into the transverse guidewav of the jaw, a shiftable bearing plate slidabl'e in the transverse guideway and formed with a round opening through which the stub shaft projects, a cam lever journaled on the stub shaft and provided with an eccentric fitting the round opening of the slidable bearing plate to exert a lateral pressure thereagainst and move the jaw, and an outwardly extending flange on the cam lver for engaging the bearing plate to hold the latter in the transverse guide- Way.

In testimony whereof I affix my signature in presence of two witnesses.

FRANK SANFORD.

lVitnesses F. W. SMITH, EMILY ROBINSON.

Copies 0! this patent may be obtained for five cents each, by addressing the Commissioner of 'I'atentz,

Washington, D. 0." 

